John w



. UNITED STATES 'PATENT rricn.

Jonvvfw. HALEY, onnonrn IIARTLAND, vnRMoNT.

NUT-LOCK.

SPECIFICATION frming pan;l of Letters Patent *110.292,301, dated January a2, 18s4.`

Application filed December', 1883. (Model.)

To aZZ whom/i1? may concer/1,:

Be it known that I, JOHN W. HALEY, of North Hartland, in the county of Windsor and State of Vermont, have invented a new and Improved NutLock, of whichthe following isa full, clear, and exact description.

.The invention consists inthe combination, with a iish-plate having lugs on its outer surface, of a frame or check-nut, which frame is provided with diagonally-opposite lugs, adaptcd to catch on the lugs ou the sh-plate and prevent the locking-nut from turning.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters oi' Areference indicate corresponding parts in all the figures.

Figure lis a longitudinal elevation of my improved nut-lock, showing it applied; Fig. 2, a cross-sectional elevation of the same and of the rail and iish-plates. 'Fig. 3 is a perspective view of the check-nut or frame. Fig. 4 is a cross-sectional elevation of the fish-plate having the lugs.

The sh-plate A, against which the nut B rests, is provided with two hook-lugs, 0U- one to the left of the upper corner ofthe nut andthe other to the right of the lower corner` of which hook lugs the lower one has adownwardly-projecting prong and the upper one an upwardly-proj ecting prong. A metal quad rilateral or other frame, D, fitting closely on the nut B, is provided at two diagonally-op- 4 posite corners with two lugs, E, projecting in opposite directions, which lugs EA iit in the notches formed in the hook-lugs C. The nut B, which is secured on the bolt F, passed through the fish-plates A A and the rail G, is drawn up tight, then the check-nut or frame I D is passed over the nut B, and then the nut is turned back or loosened until the lugs E pass into the recesses or notches formed in the lugs' C, thus preventing the nut from being unscrewed or loosened.

The nut-lock can be applied very easily, and in all cases prevents the'nut from being loosened. i

The' check-nut can move in the direction of for the contraction and expansion of the rail and ish-plate.

As the check-nut is held at dianietricallyopposite points, it will not rattle or jar off, as it would if held at one point only.

Having thus fully described nay-invention, I claim as new and desire to secure by Letters Patent- 1. In a nut-lock, the combination, with a fish-plate having lugs C on its outer surface, of the frame or nut-fcheck D, having lugs E at opposite corners, the said lugs. being adapted to catch on the lugs C, substantially as herein shown and described.

2. In a nut-lock, the combination, with the iish-plate A, having hooklugs C, of the frame or nut-check D, having diagonallyopposite lugs E, substantially as herein shown and described.

3. In a nut-lock, the frame or nut-check D, provided 4with lugs E at diagonallyopposite HENRY' B. MULLER, BERKLEY WILLIAMSON.

its length in the recessed lugs, and thus allows points, substantially as herein shown and dei scribed. v l

JOHN H'ALEY.

Witnesses: 

